diff options
| -rw-r--r-- | src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs | 24 | ||||
| -rw-r--r-- | src/tools/rust-analyzer/crates/mbe/src/expander/matcher.rs | 2 |
2 files changed, 25 insertions, 1 deletions
diff --git a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs index 894ef1d73e2..1bbed01443d 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs @@ -1144,3 +1144,27 @@ mod any { "#]], ); } + +#[test] +fn regression_18148() { + check( + r#" +macro_rules! m { + ( $e:expr ) => {}; +} + +fn foo() { + m!(r#const); +} +"#, + expect![[r#" +macro_rules! m { + ( $e:expr ) => {}; +} + +fn foo() { + ; +} +"#]], + ); +} diff --git a/src/tools/rust-analyzer/crates/mbe/src/expander/matcher.rs b/src/tools/rust-analyzer/crates/mbe/src/expander/matcher.rs index 90f56cc31da..4a052bbb9f6 100644 --- a/src/tools/rust-analyzer/crates/mbe/src/expander/matcher.rs +++ b/src/tools/rust-analyzer/crates/mbe/src/expander/matcher.rs @@ -780,7 +780,7 @@ fn match_meta_var( // [1]: https://github.com/rust-lang/rust/blob/f0c4da499/compiler/rustc_expand/src/mbe/macro_parser.rs#L576 match input.peek_n(0) { Some(tt::TokenTree::Leaf(tt::Leaf::Ident(it))) => { - let is_err = if matches!(expr, ExprKind::Expr2021) { + let is_err = if it.is_raw.no() && matches!(expr, ExprKind::Expr2021) { it.sym == sym::underscore || it.sym == sym::let_ || it.sym == sym::const_ } else { it.sym == sym::let_ |